German and Swiss police seize Cryptomixer servers in Zurich

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Yaroslav Dmytrenko

01.12.2025

German and Swiss police seize Cryptomixer servers in Zurich — EU dismantles one of Europe’s largest crypto mixing services

Europol, together with law enforcement agencies from Germany and Switzerland, has shut down one of Europe’s largest platforms for mixing illegally obtained cryptocurrency, known as Cryptomixer.

On Monday, Europol announced a successful joint operation by German and Swiss police, during which three Cryptomixer servers in Zurich were seized. During the operation, which took place between November 24 and 28, authorities confiscated more than 12 terabytes of user data, seized €25 million ($27 million) in Bitcoin, and took control of the domain cryptomixer.io.

According to Europol, the platform known as “Cryptomixer” had been operating since 2017 as a hybrid mixing service on both the open internet and the darknet, processing more than €1.3 billion worth of Bitcoin over that period.

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Authorities report that the mixer was активно used by ransomware groups, underground cybercrime forums, and darknet marketplace operators.Its software combined deposits over long, random periods and then redistributed the funds to new addresses in order to obscure transaction trails.

This method helped conceal proceeds from illegal drug and arms trafficking, payment card fraud, and cyberattacks, enabling criminals to convert “cleaned” assets back into other cryptocurrencies or fiat money through exchanges, ATMs, and bank accounts.

Stepped-up efforts against illicit crypto flows

The operation marks one of the largest actions in the EU’s ongoing efforts to dismantle services that conceal criminal financial flows.Europol coordinated intelligence sharing through its Joint Cybercrime Action Taskforce and provided forensic experts to support the raids.

According to Cryptonews.com, the agency has taken part in several major anti-mixing operations in recent years, including the shutdown of ChipMixer in March 2023, which was the largest service of its kind at the time.

The takedown comes amid the EU’s tightening of its anti-money-laundering framework ahead of key regulatory deadlines. Under the new AML rules linked to MiCA, crypto mixing services are banned across the bloc, and privacy-enhancing coins such as Monero and Zcash are set to be prohibited by 2027.

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